Neptune's CPU core consists of an ETX module mounted its bottom side, an approach that improves thermal management and increases the space for I/O functions and connections. By utilizing conduction cooling, Neptune features improved ruggedness and reliability through the use of a heatspreader. This innovative design has enabled Neptune to integrate CPU, system I/O, industry-leading data acquisition, both 10/100Mbps and gigabit Ethernet, and a wide-input DC/DC power supply within the compact and modularly expandable EPIC single-board computer (SBC) form-factor.

Choice of CPUs

1.91GHz Intel Atom E3845 quad core

1.65GHz AMD G-T56N

1.0GHz AMD G-T40N

Thanks to Neptune's flexible architecture, you can select from a range of ETX-based CPUs to meet each application's specific performance, power, and cost requirements. Available processors include the Intel Atom E-Series or AMD G-Series CPUs. A choice of ETX COMs offers scalable performance for your application as well as protection from obsolescence through plug compatible CPU modules.

To simplify the task of putting this advanced data acquisition functionality to work in real-world applications Neptune comes with Diamond's Universal Driver software for C programming under Linux, Windows XP, Windows CE, and DOS.

Benefits of an ETX Processor Core

Choice of price/performance: Neptune is available with a range of CPUs, from an AMD Fusion G-T40 up to a high-performance Intel Atom E3845 quad core, so you can obtain exactly the performance and cost required

Protection from obsolescence: Easily switch processor modules in case of processor end of life

Easy upgrade: ETX CPUs are interchangeable, allowing you to easily upgrade your system with minimal or no redesign

Low Cost: ETX modules cost less than their equivalent SBC, resulting in a lower total cost for Neptune

Autocalibration for Best Measurement Accuracy

Diamond’s top-performing autocalibration circuitry lets you calibrate the analog circuits under software control at any time, maintaining best accuracy despite varying conditions. Temperature- and time-dependent measurement drift is eliminated, since the system can be calibrated as often as desired in just a few seconds, to ensure accurate readings in all environmental conditions.

Thermal Management

Neptune's ETX processor module is located on its bottom side. An integrated heatspreader makes thermal contact with the heat generating components and provides a flat surface on the bottom of the assembly for mating to the system enclosure. This technique facilitates efficient removal of heat from the CPU without the need for a fan. Four mounting holes on the bottom of the conduction cooled heatspreader are provided to mount Neptune in an enclosure or to a bulkhead. These mounting holes are #6-32 threaded holes on 2.8" centers.